<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>

  <body>
    <form>
      <input type="text" name="username" placeholder="请输入用户名" /><br />
      <input type="text" name="password" placeholder="请输入密码" /><br />
      <button type="submit">登录</button>
    </form>
  </body>
  <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
  <script>
    //接口地址 http://ajax-api.itheima.net/api/data

    //获取表单元素
    const form = document.querySelector('form')
    const inputUsername = document.querySelector('input[name=username]').value.trim()
    const inputPassword = document.querySelector('input[name=password]').value.trim()

    //  给form表单绑定提交事件
    form.addEventListener('submit', function (e) {
      // 阻止默认提交行为
      e.preventDefault()
      // 发起请求
      axios({
        url:'http://ajax-api.itheima.net/api/data',
        method: 'POST',
        data: {
          username:inputUsername,
          password:inputPassword,
        },
      })
        //响应数据
        .then(({ data: res }) => console.log(res))
    })
  </script>
</html>
